<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src=""></script>
    <script src="./form1.js"></script>
</head>

<body>
    <!--from表单的js操作-->
    <form action="" method="get">
        <input id="username" type="text" name="username" value="" placeholder="请输入用户名" /><br/>
        <input id="password" type="password" name="password" placeholder="请输入密码" /><br>
        <!-- <input type="checkbox" id="pos">北京
        <input type="checkbox">天津
        <input type="checkbox">南京
        <select name="" id="city">
            <option value="001">呼和浩特</option>
            <option value="002">乌鲁木齐</option>
            <option value="003">南宁</option>
        </select><br> -->
        <button type="button">提交(get)</button>
        <button id="bun_post" type="button">提交(post)</button>
    </form>
</body>

</html>